Instruction manual
Table Of Contents
- Important safety instructions
- Package contents
- Product overview
- Getting started
- Using the headphones
- Information on the rechargeable battery and the charging process
- Charging the headphones' rechargeable battery
- Connecting the headphones to a Bluetooth device
- Information on the Bluetooth wireless connection
- Pairing the headphones with a Bluetooth device
- Disconnecting the headphones from a Bluetooth device
- Installing the Smart Control app
- Switching the headphones on
- Switching the headphones off
- Putting the headphones on and adjusting the headband
- Retrieving information on the battery charge status
- Adjusting the volume
- Information on active noise cancellation ANC
- Activating/deactivating the active noise cancellation ANC
- Listening to music using the headphones
- Controlling music playback
- Making phone calls using the headphones
- Using the voice assistant/voice dialing
- Using Amazon Alexa as voice assistant
- Adjusting sound effects/the equalizer
- Using the audio cable/activating flight mode
- Connecting the headphones using the audio cable
- Storing and transporting the headphones
- Care and maintenance
- FAQ/If a problem occurs ...
- Specifications
- Manufacturer Declarations
Specifications
34 | HD 450SE
Specifications
Model: SEBT4
Bluetooth
Wearing style Bluetooth® around-ear, closed-back
Ear coupling circum-aural
Transducer principle dynamic
Transducer 32 mm
Frequency response 18 Hz to 22,000 Hz (-10 dB)
Sound pressure level (SPL) 108 dB (1 kHz/0 dBFS)
THD (1 kHz, 100 dB SPL) < 0.3 % (1 kHz, 100 dB SPL)
Microphone principle MEMS
Microphone frequency
response
80 Hz to 6,000 Hz (-3 dB)
Microphone pick-up pattern
(speech audio)
dual omni-directional microphones
2-mic beamforming array
Power supply built-in rechargeable lithium-polymer
battery:
3,7 V ⎓, 600 mAh
USB charging: 5 V ⎓, 500 mA max.
Charging time of
rechargeable battery
approx. 2 hours
Operating time 30 hrs (music playback via Bluetooth
with ANC activated)
Temperature range operation: 0°C to +40°C
charging: +10°C to +40°C
storage: –20°C to +60 °C
Relative humidity operation: 10 to 80 %, non condensing
storage: 10 to 90 %
Weight (headphones) approx. 238 g
Magnetic field strength 1.9 mT
Version Bluetooth 5.0 compatible, class 1, BLE
Transmission frequency 2,402 MHz to 2,480 MHz
Modulation GFSK, π/4 DQPSK, 8DPSK
Output power 12.6 mW (max)
Profiles HSP, HFP, AVRCP, A2DP
Codec aptX, aptX LL, AAC, SBC
Device name HD 450SE
LE-HD 450SE (Bluetooth Low Energy
only)
Number of active
connections
2